我有一个关联数组或对象
示例：
我如何在数组上循环显示旋转木马以在这样的html输出中输出
<div id="Carousel" class="carousel slide">
<!-- Carousel items -->
<div class="carousel-inner">
<div class="item active">
<div class="row">
<div class="col-md-2"><a href="#" class="thumbnail" id="carousel-selector-0"><img src="images/img1.jpg" alt="Image" style="max-width:100%;"></a></div>
<div class="col-md-2"><a href="#" class="thumbnail" id="carousel-selector-1"><img src="images/img2.jpg" alt="Image" style="max-width:100%;"></a></div>
<div class="col-md-2"><a href="#" class="thumbnail" id="carousel-selector-2"><img src="images/img3.jpg" alt="Image" style="max-width:100%;"></a></div>
<div class="col-md-2"><a href="#" class="thumbnail" id="carousel-selector-3"><img src="images/img4.jpg" alt="Image" style="max-width:100%;"></a></div>
<div class="col-md-2"><a href="#" class="thumbnail" id="carousel-selector-4"><img src="images/img5.jpg" alt="Image" style="max-width:100%;"></a></div>
<div class="col-md-2"><a href="#" class="thumbnail" id="carousel-selector-5"><img src="images/img6.jpg" alt="Image" style="max-width:100%;"></a></div>
</div><!--.row-->
</div><!--.item-->
<div class="item">
<div class="row">
<div class="col-md-2"><a href="#" class="thumbnail" id="carousel-selector-0"><img src="images/img1.jpg" alt="Image" style="max-width:100%;"></a></div>
<div class="col-md-2"><a href="#" class="thumbnail" id="carousel-selector-1"><img src="images/img2.jpg" alt="Image" style="max-width:100%;"></a></div>
<div class="col-md-2"><a href="#" class="thumbnail" id="carousel-selector-2"><img src="images/img3.jpg" alt="Image" style="max-width:100%;"></a></div>
<div class="col-md-2"><a href="#" class="thumbnail" id="carousel-selector-3"><img src="images/img4.jpg" alt="Image" style="max-width:100%;"></a></div>
<div class="col-md-2"><a href="#" class="thumbnail" id="carousel-selector-4"><img src="images/img5.jpg" alt="Image" style="max-width:100%;"></a></div>
<div class="col-md-2"><a href="#" class="thumbnail" id="carousel-selector-5"><img src="images/img6.jpg" alt="Image" style="max-width:100%;"></a></div>
</div><!--.row-->
</div><!--.item-->
</div><!--.carousel-inner-->
<a data-slide="prev" href="#Carousel" class="left carousel-control">‹</a>
<a data-slide="next" href="#Carousel" class="right carousel-control">›</a>
</div><!--.Carousel-->
我试过：
<div class="carousel-inner">
<?php
echo "<div class='item active'>";
echo "<div class='row'>";
foreach($arr as $key=>$value){
if ($key== 6) {
echo "</div>";
echo "</div>";
echo "<div class='item'>";
echo "<div class='row'>";
}
echo "<div class='col-md-2'>";
echo '<a href="#" class="thumbnail" id="carousel-selector-'.$key.'"><img src="images/img'.$value.'.jpg" alt="Image" style="max-width:100%;"></a>';
echo "</div>";
}
echo "</div>";
echo "</div>";?>
这是我的正确答案：
<?php
$result .= '<div class="item active">';
foreach ($get_result as $key => $value) {
if ($key !=0 && ($key % 6 == 0)) { //to avoid first empty "active"
$result .= "</div>";
$result .= "<div class='item'>";
}
$result .= '<a href="'.$value['url'].'"><img src="'.$value['logo'].'" alt="'.$value['name'].'" title="'.$value['name'].'"></a>';
}
$result .= '</div>';
echo $result;
?>
您的循环代码非常接近；你所需要的只是一个模运算符。
如果你不知道模是什么，你可以在这里阅读：http://php.net/manual/en/internals2.opcodes.mod.php
<?php
echo "<div class='item active'>";
echo "<div class='row'>";
foreach($arr as $key=>$value)
{
//if we can divide $key by six without remainder
if ($key % 6 == 0)
{
echo "</div>";
echo "</div>";
echo "<div class='item'>";
echo "<div class='row'>";
}
echo "<div class='col-md-2'>";
echo '<a href="#" class="thumbnail" id="carousel-selector-'.$key.'"><img src="images/img'.$value.'.jpg" alt="Image" style="max-width:100%;"></a>';
echo "</div>";
}
echo "</div>";
echo "</div>";?>